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82856018 = 2747125921
BaseRepresentation
bin1001111000001…
…00100001010010
312202220112002102
410330010201102
5132202343033
612115520402
72024156510
oct474044122
9182815072
1082856018
1142851a53
12238b9102
131422033b
14b00b4b0
157419de8
hex4f04852

82856018 has 16 divisors (see below), whose sum is σ = 145062144. Its totient is φ = 34753920.

The previous prime is 82856009. The next prime is 82856027. The reversal of 82856018 is 81065828.

It is an interprime number because it is at equal distance from previous prime (82856009) and next prime (82856027).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62303 + ... + 63618.

It is an arithmetic number, because the mean of its divisors is an integer number (9066384).

Almost surely, 282856018 is an apocalyptic number.

82856018 is a deficient number, since it is larger than the sum of its proper divisors (62206126).

82856018 is a wasteful number, since it uses less digits than its factorization.

82856018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125977.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 82856018 is about 9102.5281103658. The cubic root of 82856018 is about 435.9546883585.

It can be divided in two parts, 82 and 856018, that multiplied together give a triangular number (70193476 = T11848).

The spelling of 82856018 in words is "eighty-two million, eight hundred fifty-six thousand, eighteen".

Divisors: 1 2 7 14 47 94 329 658 125921 251842 881447 1762894 5918287 11836574 41428009 82856018